Flexible carbon-scraper.



0. L. IHRIG. FLEXIBLE CARBON SCRAPER.

APPLICAETION FILED NOV. 13, HHS.

1,177,333. Patented Mar. 28,1916.

fvvenzar Or/azzdl .jkrzzy'j K any,

THE COLUMBIA PLANOGRAPH co., WASHINGTON. D. c.

UNITED STATES PATENT OFFICE.

ORLAND L. IHRIG, 013 ,LOS ANGEIiES, CALIFORNIA.

FLEXIBLE CARBON-SCRAPER.

Specification of Letters Patent.

Patented Mar. 28, 1916.

Application filed November 13, 1915. Serial No. 61,440;

To all whom it may concern:

Be it known that l, URLAND L. .I RIG,a citizen of the United States,residing at Los Angeles, in the county of Los Angeles and State'ofCalifornia, have'invented new and useful Improvements in FlexibleCarbon-.

As well known, one of the most common troubles of internal combustionengines, and

especially engines of motor vehicles, is due,

to carbon deposits in the ignition chamber. The'internal combustionengine of'niotor vehicles has greater demands made upon it in regard tovarying power and speed than stationaryengines. lhese demands arecomplicated by reason ofthe varying conditions of temperature andhumidity of the atmosphere and, "as a result, carbon deposits in thecombustion chamber are almost certain to occur sooner-or later. "No"perfect carbureter has been devised as yet which will furnish a gaseousfuel mixture exactly suited to the requirements of the engine of a motorvehicle. As a consequence, a carbon deposit, due to the excessiverichness of the gaseous fuel mixture, will occur. This excessiverichness cannot be avoided in the ordinary operation of the motorvehicle. Furthermore lubricating oil is often decomposed within thecylinders of the engine causing carbon deposits. The carbon depositsgreatly impair the efiiciency of the engine, besides wearing the valvesand grinding out the cylinder. It therefore becomes necessary to freethe engine from these carbon deposits at frequent intervals. Variousmethods are at present in use for removing the carbon from the engine,such as burning out the carbon,.or softening the same by means of fluidhydro-carbons. These methods are expensive and laborious. The employmentof an ordinary scraper for the removal of the carbon is not feasiblebecause of the narrow and angular passage-ways in which the carbon islocated, which render access diflicult.

It is also an object of this invention to devise a scraper whichisflexible and composed of a plurality of scraper units and which may beeasily introduced into the ignition or valve chamber of a moderninternal combustion engine, enabling the oper-'" ator to reach everypart thereof with case.

It :is another object of this invention to devise a flexiblecarbonscraper comprising a plurality of flexible scraper units which,

during the operation of the scraper, may be twisted so that some of theunits may ride upon the other, whereby corners and recesses otherwisedifhcult ofaccess may be reached and properly cleaned.

With these and other objects in View which will appear as thedescription proceeds, my

invention consists of the construction and arrangement ofpartshereinafter described and claimed.

In the accompanying drawings which form a part of this specification, Ihave illustrated a convenient and practical fembodiment of my invention,and inwhich:

Figure l is a perspective view of one form of my flexible carbonscraper. Fig. 2 is. a Q

similar view of another-form of my scraper.

Figs. Sand 4 are detailed views,.on anv en-V A largedfscale, showing atop plan view and a Side elevation, respectively, of the forward end ofthe scraper. Fig. 5 shows a vertical cross-section of-a modern T-shapedinternal combustion motor, showing the application.

of my scraper in removing carbon deposits. Fig. 6 is a detail viewhereinafter to be referred to.

My scraper consists of a handle 10 of any suitable or preferred shape,which, in the present instance, I have shown as construct ed of a sheetof metal bent upon itself to form a loop whose ends constitute two flatpieces with their faces fiat and parallel between which the inner endsof the scraper units are securely mounted. A metal fastening band 11surrounds the inner ends of the handle between which said units aresecured.

The scraper units consist of a plurality of rods 12 made of steel wirewhich extend side by side in parallel relation outwardly from thehandle. I have shown the scraper as composed of seven units, but it isobvious that the number is immaterial and that the scraper units arebent downwardly, as at 12, forming an obtuse angle with the lower sideof the units. The extreme outer end of each unit is flattened to form asmall blade 13 having a sharp edge 14. The edges 14 of the scraper unitsform astraight, continuous line, as shown in Fig. 3.

The scraper shown in Fig. 1 isprovided with scraper units which extendfrom the handle to the blade in a straight line. In

the form shown in Fig. 2, the scraper units.

extend for some distance in a straight line and are then curveddownwardly, as at 15. The units of Fig. 1 are longerthan those of Fig.2,'but it will be understood thatthe 3 particular length or the shape orthe curvature of the scraper units may vary so as to adapt the scraperfor particular conditions of Work to be done.

In Fig. 5, I have shown the application of the flexible carbon scraperto a modern T-shaped internal combustion engine. As shown therein, thescraper illustrated in Fig.

2 is used for removing thecarbon deposits or cavity to be reached issmaller than the width ofthe scraper, some of the units of If it isdesired to clean the carbon.

the scraper may be made-to ride upon "each.

other, as shown in Fig. 6. I

It is therefore seen that I have devised a tool which is exceedinglysimple of con struction but efiicient in operation and especiallyadapted for removing carbon deposits from internal combustion engines.

Various'changes in the construction or ar-. 7 rangement of parts may bemade by those the spirit of my invention, as covered by the skilled inthe art without departing from appended claims. V

I claim 1. A flexible carbon be capable of being twisted and riding uponeach other, said members being downwardly bent at theirjouter ends andshaped to form 1 scraper blades, the edges ,oflsaid blades forming acontinuous straight line.

2. A flexible carbon scraper comprisinga handle, a plurality of flexiblemetal scraping members extending therefrom, said members beingindependent of each other ends of said -members being bent down and of alengthto be capable of being twist-i ed and riding upon each other, theouter I wardly and shaped to form scraper blades. 1

In testimony whereof I have signed my name to this specification.

ORLAN-D L. Innis;

. Copies of this patent may be oBtained 05m cents each, by addressingthe '(rennins mmer of Patents. Washington, 12.0. V

